Originally Posted by Dawes-man

I beg your pardon, you're right, I meant 49/17. Would that be the same as regards ease or difficulty of back pedalling?

I always measure my seat height by sitting on the bike with my heels on the pedals and setting them so that my legs are very slightly off-straight with the pedals at their lowest point. With my fixed gear, and toe clips, I find I want to sit slightly further from the pedals.